📚Problem

가위바위보

💫Solve

import Foundation

func solution(_ rsp:String) -> String {
    
    var result = ""
    
    for i in rsp {
        if i == "2" {
            result += "0"
        }
        else if i == "0" {
            result += "5"
        }
        else {
            result += "2"
        }
    }
    
    return result
}

✌️Another Solution

import Foundation

func solution(_ rsp:String) -> String {
    return rsp.map{$0 == "0" ? "5" : $0 == "2" ? "0" : "2"}.joined()
}